Out of bounds server disconnection

I was playing uhc on hypixel, then all of a sudden it disconnects me and says
Internal Exeption: io.netty.handler.codec.DecoderException: java.lang.IndexOutOfBoundsException: readerIndex(29) + length(1) exceeds writerIndex(29): UnpooledHeapByteBuf(ridx: 29, widx: 29, cap: 29)